CN103836578B - The lifting rod structure of light fixture and use the Projecting Lamp of this lifting rod structure - Google Patents
The lifting rod structure of light fixture and use the Projecting Lamp of this lifting rod structure Download PDFInfo
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- CN103836578B CN103836578B CN201210491448.9A CN201210491448A CN103836578B CN 103836578 B CN103836578 B CN 103836578B CN 201210491448 A CN201210491448 A CN 201210491448A CN 103836578 B CN103836578 B CN 103836578B
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Abstract
A lifting rod structure for light fixture, comprising: the first elevating lever, and its radial cross-section is oval; Second elevating lever, its radial cross-section is oval, and described second elevating lever is sheathed on described first elevating lever slidably, and the internal diameter of described second elevating lever equals the external diameter of described first elevating lever substantially; Joint latch assembly, is located at one end that described second elevating lever is connected with described first elevating lever.Above-mentioned lifting rod structure adopts oval elevating lever, not only can prevent elevating lever respectively save between rotation, also oval piston can be made well to slide at the inwall of elevating lever, play the effect of buffering, and then make the lamp holder above elevating lever respectively can not save the projecting direction of rotation and impact illumination because of elevating lever.Moreover joint latch assembly is set on oval elevating lever not rotatable, handled easily is attractive in appearance.The present invention also provides a kind of Projecting Lamp using above-mentioned lifting rod structure.
Description
[technical field]
The present invention relates to a kind of lifting rod structure, particularly relate to a kind of lifting rod structure of light fixture and use the Projecting Lamp of this lifting rod structure.
[background technology]
Traditional lifting rod structure is all generally have more piece elevating lever bar to be nested together, common are two kinds of structures preventing from rotating, and has on round bar, to stay a groove, also has on inwall, to reserve chrysanthemum rice profile of tooth.
These two kinds of structures can meet the requirement of spline, but if increase the requirement that a device of calming the anger just can not complete spline elevating function.The device of generally calming the anger is used for making elevating lever and falls to cushioning use, the inner wall smooth of the functional requirement elevating lever of the buffering that falls.The elevating lever inwall of above-mentioned two kinds of structures has projection, can not complete the requirement of whereabouts pooling feature.
[summary of the invention]
In view of above-mentioned condition, be necessary to provide a kind of and can prevent the rotation between elevating lever but not affect the lifting rod structure of the light fixture of whereabouts pooling feature.
A lifting rod structure for light fixture, comprising:
First elevating lever, its radial cross-section is oval;
Second elevating lever, its radial cross-section is oval, and described second elevating lever is sheathed on described first elevating lever slidably, and the internal diameter of described second elevating lever equals the external diameter of described first elevating lever substantially; And
Joint latch assembly, is located at one end that described second elevating lever is connected with described first elevating lever, and described joint latch assembly comprises:
Arthrodesis seat, for being sheathed on the junction of described second elevating lever and described first elevating lever, described arthrodesis seat is the tube structure of both ends open, and described arthrodesis seat offers the first slit and second slit crossing with described first slit; Described first slit is positioned at the middle part of described arthrodesis seat, and described second slit extends to another one openend from one of them openend of described arthrodesis seat; Four parts that described first slit and described second slit are divided into be respectively two location clamping sections and two fix to clamp portion, clamping portion, described two location is positioned at the side of described first slit, and described two portions of fixing to clamp are positioned at the opposite side of described first slit; The end of described second elevating lever is contained in described two of described arthrodesis seat and fixes to clamp in the openend at place, portion;
Threaded fastener, fixes to clamp portion through described two, and is fixedly connected with described two and fixes to clamp portion, makes described arthrodesis seat be fixed on the end of described second elevating lever;
Drag ring, is sheathed on described first elevating lever, and is contained in the openend at place, clamping section, described two location of described arthrodesis seat, and described drag ring offers axially extended 3rd slit along described drag ring;
Handle, one end is provided with eccentric cam, described eccentric cam with locate clamping section described in one of them and abut;
Rotating shaft, through described eccentric cam, and described rotatable for rotating shaft described in winding by hand; And
Lock shaft, through clamping section, described two location, and is fixedly connected with described rotating shaft;
Wherein, rotate forward described handle, described rotating shaft is made to pull described lock shaft, clamping section, described lock shaft tension described two location, there is elastic deformation and compress described drag ring in clamping section, described two location, thus the width of the 3rd slit of described drag ring is diminished, and then clamp described first elevating lever and stop described first elevating lever to continue to slide.
Above-mentioned lifting rod structure adopts oval elevating lever, not only can prevent elevating lever respectively save between rotation, also oval piston can be made well to slide at the inwall of elevating lever, play the effect of buffering, and then make the lamp holder above elevating lever respectively can not save the projecting direction of rotation and impact illumination because of elevating lever.Moreover joint latch assembly is set on oval elevating lever not rotatable, handled easily is attractive in appearance.
Wherein in an embodiment, the size of the major axis of the radial cross-section of described first elevating lever is greater than the size at least 2 millimeters of minor axis; And/or the size of the major axis of the radial cross-section of described second elevating lever is greater than the size at least 2 millimeters of minor axis.
Wherein in an embodiment, also comprise piston ring, described piston ring is oval, and is located at the end that described first elevating lever is contained in the one end in described second elevating lever; Described piston ring abuts with the inwall of described second elevating lever, and relative to described second elevating lever slidably.
Wherein in an embodiment, also comprise piston seat, described piston seat is ellipsoidal structure, and is fixed on the end that described first elevating lever is contained in one end of described second elevating lever, and described piston ring set is located on described piston seat.
Wherein in an embodiment, described piston seat is partially housed in the end of described first elevating lever, is spirally connected, thus described piston seat is fixed on the end of described first elevating lever after threaded fastener wears described second elevating lever with described piston seat.
Wherein in an embodiment, described piston seat comprises socket part, fixed part and stop part, and described socket part is connected with one end of described fixed part is coaxial; Described stop part is located at one end that described socket part is connected with described fixed part, and around a week of described socket part; Described socket part is contained in described first elevating lever; The size of described stop part is greater than the internal diameter of described first elevating lever, thus abuts with the end face of described first elevating lever one end; On the sheathed described fixed part of described piston ring.
Wherein in an embodiment, also comprise bottom valve assembly, described bottom valve assembly is located at described second elevating lever one end away from described first elevating lever, and when described first elevating lever is towards described second elevating lever internal slide, described bottom valve assembly is opened and exits; When described first elevating lever is away from described second elevating lever internal slide, described bottom valve assembly is closed.
Wherein in an embodiment, described bottom valve assembly comprises:
Base, be installed on described second elevating lever one end away from described first elevating lever, described base has valve, the intracavity inter-connection of described valve and described second elevating lever;
Valve, is connected with described base, and described valve is used for closing or opening described valve;
Elastic component, is connected with described base, and abuts with described valve, makes described valve close described valve under the effect of described elastic component; And
Wherein, when described first elevating lever is towards described second elevating lever internal slide, the gas of described second elevating lever impacts described valve, and described valve compresses described elastic component, makes described elastic component generation elastic deformation.
Wherein in an embodiment, described base comprises lid, is vertically located at first cylindrical shell on the surface of described lid and is positioned at described first cylindrical shell and is vertically located at second cylindrical shell on the surface of described lid, the opening of described second cylindrical shell one end runs through described lid, and the opening of the other end shrinks and forms described valve; Described first cylindrical shell is contained in described second elevating lever one end, and the size of described lid is greater than the internal diameter of described second elevating lever, thus stop by the end face of described second elevating lever one end; Described elastic component and valve are all contained in described second cylindrical shell.
Meanwhile, be necessary to provide a kind of Projecting Lamp using above-mentioned lifting rod structure.
A kind of Projecting Lamp, comprising:
Above-mentioned lifting rod structure;
U-shaped support, is fixed on described first elevating lever one end away from described second elevating lever; And
Lamp holder, is rotatably connected with the two ends of described U-shaped support.
[accompanying drawing explanation]
Fig. 1 is the stereogram of the lifting rod structure of the light fixture of embodiment of the present invention;
Fig. 2 is the exploded view of lifting rod structure shown in Fig. 1;
Fig. 3 is the partial exploded view of lifting rod structure shown in Fig. 1;
The sectional view of the piston ring place part that Fig. 4 is lifting rod structure shown in Fig. 1;
Fig. 5 is the partial exploded view of lifting rod structure shown in Fig. 1;
The sectional view of the bottom valve assembly place part that Fig. 6 is lifting rod structure shown in Fig. 1;
The stereogram of the joint latch assembly that Fig. 7 is lifting rod structure shown in Fig. 1.
[detailed description of the invention]
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1 and Fig. 2, the lifting rod structure 100 of the light fixture of embodiments of the present invention comprises the first elevating lever 110, second elevating lever 120 and joint latch assembly 130.
The radial cross-section of the first elevating lever 110 is oval.The radial cross-section of the second elevating lever 120 is also oval, and the second elevating lever 120 is sheathed on the first elevating lever 110 slidably, and the internal diameter of the second elevating lever 120 equals the external diameter of the first elevating lever 110 substantially.Due in actual use, there is work difference in the size of the first elevating lever 110 and the second elevating lever 120, and therefore, " substantially equaling " allows the existence of worker difference.
Because the first elevating lever 110 and the second elevating lever 120 are ellipse, and the internal diameter of the second elevating lever 120 equals the first elevating lever 110, thus makes between the first elevating lever 110 and the second elevating lever 120 not rotatable; And, without the need to arranging the lug boss or groove that are used for spline on the second elevating lever 120 or the first elevating lever 110, thus keep the comparatively smooth of the outer wall of the first elevating lever 110 and the inwall of the second elevating lever 120, therefore, do not affect the elevating lever whereabouts pooling feature of lifting rod structure 100.
Preferably, the size of the major axis of the radial cross-section of the first elevating lever 110 is greater than the size at least 2 millimeters of minor axis; And/or second the size of major axis of radial cross-section of elevating lever 120 be greater than the size at least 2 millimeters of minor axis.Because the major axis of radial cross-section of the first elevating lever 110 and/or the second elevating lever 120 and the difference in size of minor axis are greater than 2 millimeters, the rotation between the first elevating lever 110 and the second elevating lever 120 can be stoped better.
Refer to Fig. 3 and Fig. 4, joint latch assembly 130 comprises arthrodesis seat 131, threaded fastener 133, drag ring 135, handle 137, rotating shaft 138 and lock shaft 139.
Arthrodesis seat 131 is for being sheathed on the junction of the second elevating lever 120 and the first elevating lever 110.Arthrodesis seat 131 is the tube structure of both ends open, and arthrodesis seat 131 offers the first slit and second slit crossing with the first slit.First slit is positioned at the middle part of arthrodesis seat 131.Second slit extends to another one openend from one of them openend of arthrodesis seat 131.Wherein, four parts that the first slit and the second slit are divided into be respectively two location clamping sections and two fix to clamp portion.Clamping portion, two location is positioned at the side of the first slit, and two portions of fixing to clamp are positioned at the opposite side of the first slit.The end of the second elevating lever 120 is contained in two of arthrodesis seat 131 and fixes to clamp in the openend at place, portion.
Concrete arthrodesis seat 131 is the tube structure of truncated cone-shaped in the illustrated embodiment, and clamping portion, two location is positioned at the less openend of arthrodesis seat 131, and two portions of fixing to clamp are positioned at the larger openend of arthrodesis seat 131.Size due to the first elevating lever 110 is less than the opening size of the second elevating lever 120, makes two of arthrodesis seat 131 to locate clamping section and is just set on the first elevating lever 110.Certainly, in invention, arthrodesis seat 131 also can be the tube structure of other shapes.
First slit extends along the circumference of arthrodesis seat 131, and the second slit extends along the axis of arthrodesis seat 131, makes the first slit crossing with the second vertical slot.Because the first slit is crossing with the second vertical slot, two of arthrodesis seat 131 clamping sections, location and two portions of fixing to clamp are symmetrical arranged, stressed comparatively even, and then improve stability and the durability of arthrodesis seat 131.Certainly, in the present invention, the first slit can tilt with the circumference of arthrodesis seat 131, and/or the axis of the second slit and arthrodesis seat 131 tilts, and makes the first slit and the second slit oblique.
In addition, the free end of clamping section, two location is equipped with the first lug, and two free ends fixing to clamp portion are equipped with the second lug.Second slit is located between the first lug of clamping section, simultaneously also between the second lug that two fix to clamp portion at two.
Threaded fastener 133 fixes to clamp portion through two, and is fixedly connected with two and fixes to clamp portion, and arthrodesis seat 131 is fixed on the end of the second elevating lever 120.Specifically in the illustrated embodiment, the outside of the second lug of arthrodesis seat 131 is provided with the second storage tank, threaded fastener 133 is screw, and threaded fastener 133 matches with nut after fixing to clamp second lug in portion through two of arthrodesis seat 131.The cap head of threaded fastener 133 and nut are contained in two the second storage tanks fixing to clamp second lug in portion respectively, and be equipped with cap stopper in two the second storage tanks fixing to clamp second lug in portion, be respectively used to the cap head and the nut that hide threaded fastener 133.
In other embodiments, threaded fastener 133 is screw, the second lug that one of them of arthrodesis seat 131 fixes to clamp portion is provided with screw, and threaded fastener 133 is screwed with screw after fixing to clamp second lug in portion through the another one of arthrodesis seat 131.Because threaded fastener 133 is directly screwed with the screw of second lug in the portion that fixes to clamp of arthrodesis seat 131, eliminate a nut, thus raising packaging efficiency, reduce costs.
Drag ring 135 is sheathed on the first elevating lever 110, and is contained in the openend at place, clamping section, two location of arthrodesis seat 131.Drag ring 135 offers axially extended 3rd slit along drag ring 135.Concrete in the illustrated embodiment, drag ring 135 comprises the circular sleeve of both ends open and is located at the annular flange flange of an openend of circular sleeve.This annular flange flange outside the openend of this circular sleeve one week.The overall diameter of annular flange flange is greater than the internal diameter of the openend at the place, the portion that fixes to clamp of arthrodesis seat 131, and annular flange flange is positioned at the middle part of arthrodesis seat 131, fall in the openend at place, the portion that fixes to clamp of arthrodesis seat 131 to stop this drag ring 135.Certainly, in the present invention, drag ring 135 also can be the structure of other shapes.
One end of handle 137 is provided with eccentric cam, and eccentric cam is located clamping section with one of them and abutted.Rotating shaft 138 is through eccentric cam, and handle 137 is 138 rotatable around the shaft.Concrete in the illustrated embodiment, rotating shaft 138 offers the bearing pin of screw for middle part, and matching with the screw of rotating shaft 138 in the threaded portion of lock shaft 139, thus is fixedly connected with rotating shaft 138 by lock shaft 139.In other embodiments, rotating shaft 138 also can be columniform straight-bar, and straight-bar is through after the eccentric cam of handle 137, and its two ends are provided with jump ring, in case spline axle 138 comes off from the eccentric cam of handle 137.
Lock shaft 139 through the clamping section, two location of arthrodesis seat 131, and is fixedly connected with rotating shaft 138.Concrete, lock shaft 139 is through the first lug of the clamping section, two location of arthrodesis seat 131, and the first lug that eccentric cam locates clamping section with one of them abuts.Specifically in the illustrated embodiment, lock shaft 139 is screw, the outside of the first lug of the clamping section, another one location of arthrodesis seat 131 is provided with the first storage tank, the cap head of lock shaft 139 is contained in the first storage tank, and is provided with the cap stopper of the cap head hiding lock shaft 139 in the first storage tank.
In other embodiments, lock shaft 139 is equipped with the screw rod of screw thread for two ends, first lug of one of them clamping section, location of arthrodesis seat 131 is provided with screw, after the first lug through the clamping section, another one location of arthrodesis seat 131 of one end of lock shaft 139, screwhole spiro bonding of the first lug of one of them clamping section, location with this, the other end of lock shaft 139 and the screw of rotating shaft 138 are screwed.
Wherein, rotate forward handle 137, rotating shaft 138 is made to pull lock shaft 139, lock shaft 139 strains clamping section, two location, there is elastic deformation and compress drag ring 135 in clamping section, two location, thus the width of the 3rd slit of drag ring 135 is diminished, and then clamp the first elevating lever 110 and stop the first elevating lever 110 to continue to slide.Rotate backward handle 137, lock shaft 139 unclamps and makes two to locate clamping section to recover deformation, and the width of the 3rd slit of drag ring 135 becomes large, makes the first elevating lever 110 in the second elevating lever 120 slidably.
The assemble method of above-mentioned joint latch assembly 130: rotating shaft 138 is inserted in the axis hole of the eccentric cam of handle 137, lock shaft 139 is allowed to pass the first lug of the clamping section, location of arthrodesis seat 131 and be inserted in the screw of rotating shaft 138 again, too tight without the need to lock.Again second lug of threaded fastener 133 through the fixing and locking portion of arthrodesis seat 131, lock nut, also too tight without the need to lock.
Then, the center of the first elevating lever 110 through arthrodesis seat 131, then through drag ring 135, put two stop bit parts, stop bit part has salient point, can be stuck in the hole of the first elevating lever 110 lower end.Be inserted in the second elevating lever 120 again, locking screw securing member 133 allows arthrodesis seat 131 and the second elevating lever 120 be fixed together.Regulate lock shaft 139 again, stir handle 137, attempt the size of power, be transferred to suitable just passable.Finally, then cap stopper beyond the Great Wall, cap head and the nut of screw terminal is used for hiding.
The principle that arthrodesis seat 131 can lock the first elevating lever 110 is: the center of the eccentric cam of handle 137 dress be rotating shaft 138, profile is the arc of an approximate off-centre operation, when handle 137 is opened, contact point is little to axle centre distance, when depression of handle 137, contact point becomes large to the distance of axle, thus the first elevating lever 110 is locked in the deformation that can promote the clamping section, location of arthrodesis seat 131.
When being applied to Projecting Lamp, the lamp holder of Projecting Lamp is fixed on the first elevating lever 110 one end away from the second elevating lever 120.First elevating lever 110 is connected with the second elevating lever 120 by joint latch assembly 130.Wherein, when needing to regulate the height of lamp holder, rotate backward handle 137, lock shaft 139 unclamps and makes two to locate clamping section to recover deformation, and the width of the 3rd slit of drag ring 135 becomes large, makes the first elevating lever 110 in the second elevating lever 120 slidably.
Above-mentioned joint latch assembly 130 pulls lock shaft 139 by swing handle 137, abut because one of them of eccentric cam and the arthrodesis seat 131 of handle 137 locates clamping section, and the rotating shaft 138 on handle 137 strains the clamping section, another one location of arthrodesis seat 131 by lock shaft 139, thus change two clamping forces of locating between clamping section of arthrodesis seat 131, and then locking the first elevating lever 110.Therefore, above-mentioned joint latch assembly 130 is by the handle 137 i.e. height of adjustable first elevating lever 110, and without the need to by specific purpose tool, it operates more for convenience.
See also Fig. 5, further, lifting rod structure 100 also comprises piston ring 140.Piston ring 140 is oval, and is located at the end that the first elevating lever 110 is contained in the one end in the second elevating lever 120.Piston ring 140 abuts with the inwall of the second elevating lever 120, and relative to the second elevating lever 120 slidably.Because the inwall of piston ring 140 with the second elevating lever 120 abuts, play whereabouts cushioning effect, and upper sliding cushioning effect.
Piston ring 140 directly can be sheathed on the end of the first elevating lever 110 regularly, and other elements also can be adopted to be fixed on the end of the first elevating lever 110.Specifically in the illustrated embodiment, lifting rod structure 100 also comprises piston seat 150, and piston seat 150 is ellipsoidal structure, and is fixed on the end that the first elevating lever 110 is contained in one end of the second elevating lever 120, and piston ring 140 is sheathed on piston seat 150.
Further, piston seat 150 is partially housed in the end of the first elevating lever 110, and threaded fastener is worn after the second elevating lever 120 and piston seat 150 is spirally connected, thus piston seat 150 is fixed on the end of the first elevating lever 110.Because piston seat 150 adopts threaded fastener to be fixedly connected with the first elevating lever 110, piston ring 140 and the first elevating lever 110 are removably connected, so that more rering 140.
Specifically in the illustrated embodiment, piston seat 150 comprises socket part 151, fixed part 153 and stop part 155, and socket part 151 is connected with one end of fixed part 153 is coaxial.Stop part 155 is located at one end that socket part 151 is connected with fixed part 153, and around a week of socket part 151.Socket part 151 is contained in the first elevating lever 110.The size of stop part 155 is greater than the internal diameter of the first elevating lever 110, thus abuts with the end face of first elevating lever 110 one end.On the sheathed fixed part 153 of piston ring 140.Certainly, in the present invention, piston seat 150 is not limited to illustrated structure.
Further, lifting rod structure 100 also comprises bottom valve assembly 160, and bottom valve assembly 160 is located at the second elevating lever 120 one end away from the first elevating lever 110, and when the first elevating lever 110 is towards the second elevating lever 120 internal slide, bottom valve assembly 160 is opened and exits; When the first elevating lever 110 is away from the second elevating lever 120 internal slide, bottom valve assembly 160 is closed.
Specifically in the illustrated embodiment, bottom valve assembly 160 comprises base 161, valve 163 and elastic component 165.Base 161 is installed on the second elevating lever 120 one end away from the first elevating lever 110.Base 161 has valve 161a, the intracavity inter-connection of valve 161a and the second elevating lever 120.Valve 163 is connected with base 161, and valve 163 is for closing or opening valve 161a.Elastic component 165 is connected with base 161, and abuts with valve 163, makes valve 163 close valve 161a under the effect of elastic component 165.Wherein, when the first elevating lever 110 is towards the second elevating lever 120 internal slide, the gas of the second elevating lever 120 impacts valve 163, and valve 163 compresses elastic component 165, makes elastic component 165 that elastic deformation occur.
Concrete, base 161 comprises lid 161b, the first cylindrical shell 161c and the second cylindrical shell 161d, and the first cylindrical shell 161c is vertically located at the surface of lid 161b, and the second cylindrical shell 161d is positioned at the first cylindrical shell 161c and is vertically located at the surface of lid 161b.The opening of second cylindrical shell 161d one end runs through lid 161b, and the opening of the other end shrinks and forms valve 161a.First cylindrical shell 161c is contained in second elevating lever 120 one end, and the size of lid 161b is greater than the internal diameter of the second elevating lever 120, thus stop by the end face of second elevating lever 120 one end; Elastic component 165 and valve 163 are all contained in the second cylindrical shell 161d.First cylindrical shell 161c is fixed in the second elevating lever 120 through the second elevating lever 120 by threaded fastener.
See also Fig. 6 and Fig. 7, further, bottom valve assembly 160 also comprises sealing ring 167, the lateral wall of the first cylindrical shell 161c be provided with around the first cylindrical shell 161c mono-week, the seal groove of annular, sealing ring 167 is installed in seal groove.
Further, for the ease of changing valve 163 and elastic component 165, bottom valve assembly 160 also comprises threaded fasteners 169, and threaded fasteners 169 is connected near the open-top screw thread of lid 161b one end with the first cylindrical shell 161c, and elastic component 165 is connected between valve 163 and threaded fasteners 169.Threaded fasteners 169 exposes to the first cylindrical shell 161c near the end face of the opening of lid 161b one end and is provided with well, and threaded fasteners 169 is provided with the through hole be connected with the second cylindrical shell 161d.
The assemble method of above-mentioned lifting rod structure 100: piston ring 140 is enclosed within piston seat 150, then use screwed lock in the first elevating lever 110 bottom of ellipse piston seat 150.Again this part group is passed joint latch assembly 130, be inserted into inside the second elevating lever 120, joint latch assembly 130 is locked on the second elevating lever 120.Next the bottom valve assembly 160 assembled is locked into the lower end of the second elevating lever 120 with four screws.
Note during assembling stamping solid lubrication oil on piston ring 140, the inwall of the second elevating lever 120 is also smooth simultaneously, can ensure air-tightness when piston ring 140 moves.
Because the radial section of oval elevating lever (i.e. the first elevating lever 110, second elevating lever 120) is an oval ring, inner wall smooth, major axis is greater than minor axis.Thus the piston ring 140 of ellipse is not rotatable in oval elevating lever, can easily slide again.
Above-mentioned lifting rod structure 100 adopts oval elevating lever, not only can prevent elevating lever respectively save between rotation, also oval piston can be made well to slide at the inwall of elevating lever, play the effect of buffering, and then make the lamp holder above elevating lever respectively can not save the projecting direction of rotation and impact illumination because of elevating lever.Moreover joint latch assembly 130 is set on oval elevating lever not rotatable, handled easily is attractive in appearance.
Above-mentioned lifting rod structure 100, can be applicable to, in the light fixtures such as searchlight, Projecting Lamp, floor lamp, in the present embodiment, be described for Projecting Lamp.
A kind of Projecting Lamp, comprise lifting rod structure 100, U-shaped support (not shown) and lamp holder (not shown), U-shaped support is fixed on the first elevating lever 110 one end away from the second elevating lever 120, and the two ends of lamp holder and U-shaped support are rotatably connected.Because lamp holder and U-shaped bracket-rotatable are dynamically connected, thus regulate lamp holder relative to the angle of inclination of U-shaped support easily, and then regulate the irradiating angle of Projecting Lamp.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. a lifting rod structure for light fixture, is characterized in that, comprising:
First elevating lever, its radial cross-section is oval;
Second elevating lever, its radial cross-section is oval, and described second elevating lever is sheathed on described first elevating lever slidably, and the internal diameter of described second elevating lever equals the external diameter of described first elevating lever; And
Joint latch assembly, is located at one end that described second elevating lever is connected with described first elevating lever, and described joint latch assembly comprises:
Arthrodesis seat, for being sheathed on the junction of described second elevating lever and described first elevating lever, described arthrodesis seat is the tube structure of both ends open, and described arthrodesis seat offers the first slit and second slit crossing with described first slit; Described first slit is positioned at the middle part of described arthrodesis seat, and described second slit extends to another one openend from one of them openend of described arthrodesis seat; Four parts that described first slit and described second slit are divided into be respectively two location clamping sections and two fix to clamp portion, clamping portion, described two location is positioned at the side of described first slit, and described two portions of fixing to clamp are positioned at the opposite side of described first slit; The end of described second elevating lever is contained in described two of described arthrodesis seat and fixes to clamp in the openend at place, portion;
Threaded fastener, fixes to clamp portion through described two, and is fixedly connected with described two and fixes to clamp portion, makes described arthrodesis seat be fixed on the end of described second elevating lever;
Drag ring, is sheathed on described first elevating lever, and is contained in the openend at place, clamping section, described two location of described arthrodesis seat, and described drag ring offers axially extended 3rd slit along described drag ring;
Handle, one end is provided with eccentric cam, described eccentric cam with locate clamping section described in one of them and abut;
Rotating shaft, through described eccentric cam, and described rotatable for rotating shaft described in winding by hand;
Lock shaft, through clamping section, described two location, and is fixedly connected with described rotating shaft;
Piston seat, described piston seat is ellipsoidal structure, and described piston seat comprises socket part, fixed part and stop part, and described socket part is connected with one end of described fixed part is coaxial; Described stop part is located at one end that described socket part is connected with described fixed part, and around a week of described socket part; Described socket part is contained in described first elevating lever; The size of described stop part is greater than the internal diameter of described first elevating lever, thus abuts with the end face of described first elevating lever one end; And
Piston ring, described piston ring is oval, and described piston ring set is located on described fixed part, and abuts with the inwall of described second elevating lever, and described piston ring is relative to described second elevating lever slidably;
Wherein, rotate forward described handle, described rotating shaft is made to pull described lock shaft, clamping section, described lock shaft tension described two location, there is elastic deformation and compress described drag ring in clamping section, described two location, thus the width of the 3rd slit of described drag ring is diminished, and then clamp described first elevating lever and stop described first elevating lever to continue to slide.
2. lifting rod structure as claimed in claim 1, it is characterized in that, the size of the major axis of the radial cross-section of described first elevating lever is greater than the size at least 2 millimeters of minor axis; And/or the size of the major axis of the radial cross-section of described second elevating lever is greater than the size at least 2 millimeters of minor axis.
3. lifting rod structure as claimed in claim 1, it is characterized in that, described piston seat is partially housed in the end of described first elevating lever, is spirally connected, thus described piston seat is fixed on the end of described first elevating lever after threaded fastener wears described second elevating lever with described piston seat.
4. lifting rod structure as claimed in claim 1, it is characterized in that, also comprise bottom valve assembly, described bottom valve assembly is located at described second elevating lever one end away from described first elevating lever, when described first elevating lever is towards described second elevating lever internal slide, described bottom valve assembly is opened and exits; When described first elevating lever is away from described second elevating lever internal slide, described bottom valve assembly is closed.
5. lifting rod structure as claimed in claim 4, it is characterized in that, described bottom valve assembly comprises:
Base, be installed on described second elevating lever one end away from described first elevating lever, described base has valve, the intracavity inter-connection of described valve and described second elevating lever;
Valve, is connected with described base, and described valve is used for closing or opening described valve;
Elastic component, is connected with described base, and abuts with described valve, makes described valve close described valve under the effect of described elastic component; And
Wherein, when described first elevating lever is towards described second elevating lever internal slide, the gas of described second elevating lever impacts described valve, and described valve compresses described elastic component, makes described elastic component generation elastic deformation.
6. lifting rod structure as claimed in claim 5, it is characterized in that, described base comprises lid, is vertically located at first cylindrical shell on the surface of described lid and is positioned at described first cylindrical shell and is vertically located at second cylindrical shell on the surface of described lid, the opening of described second cylindrical shell one end runs through described lid, and the opening of the other end shrinks and forms described valve; Described first cylindrical shell is contained in described second elevating lever one end, and the size of described lid is greater than the internal diameter of described second elevating lever, thus stop by the end face of described second elevating lever one end; Described elastic component and valve are all contained in described second cylindrical shell.
7. a Projecting Lamp, is characterized in that, comprising:
Lifting rod structure as described in any one of claim 1 ~ 6;
U-shaped support, is fixed on described first elevating lever one end away from described second elevating lever; And
Lamp holder, is rotatably connected with the two ends of described U-shaped support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210491448.9A CN103836578B (en) | 2012-11-27 | 2012-11-27 | The lifting rod structure of light fixture and use the Projecting Lamp of this lifting rod structure |
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| CN201210491448.9A CN103836578B (en) | 2012-11-27 | 2012-11-27 | The lifting rod structure of light fixture and use the Projecting Lamp of this lifting rod structure |
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| CN103836578A CN103836578A (en) | 2014-06-04 |
| CN103836578B true CN103836578B (en) | 2016-02-10 |
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| CN108071985B (en) * | 2018-01-17 | 2023-11-10 | 日照港股份有限公司第一港务分公司 | Unexpected emergency device that falls of high pole lamp |
| CN108361619A (en) * | 2018-03-27 | 2018-08-03 | 南京亚欣照明有限公司 | A kind of road engineering lighting apparatus rotating lamp pole mechanism |
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| US6312184B1 (en) * | 1999-12-02 | 2001-11-06 | Hoshino Gakki Kabushiki Kaisha | Pipe connector |
| CN2651494Y (en) * | 2003-10-20 | 2004-10-27 | 广州市番禺迪威风动机械有限公司 | Pneumatic telescopic rods |
| CN201811168U (en) * | 2010-07-30 | 2011-04-27 | 海洋王照明科技股份有限公司 | Lamp lifting and fastening device and lamp |
| CN202002043U (en) * | 2011-01-31 | 2011-10-05 | 深圳市维思普贸易有限公司 | Anti-rotation telescopic straight tube and lamp using straight tube |
| CN102562743A (en) * | 2010-12-31 | 2012-07-11 | 海洋王照明科技股份有限公司 | Lifting rod connecting structure and lifting rod |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH701211A1 (en) * | 2009-06-03 | 2010-12-15 | Glatz Ag | Device for connecting a base pipe with a mast, in particular a standing umbrella. |
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|---|---|---|---|---|
| US6312184B1 (en) * | 1999-12-02 | 2001-11-06 | Hoshino Gakki Kabushiki Kaisha | Pipe connector |
| CN2651494Y (en) * | 2003-10-20 | 2004-10-27 | 广州市番禺迪威风动机械有限公司 | Pneumatic telescopic rods |
| CN201811168U (en) * | 2010-07-30 | 2011-04-27 | 海洋王照明科技股份有限公司 | Lamp lifting and fastening device and lamp |
| CN102562743A (en) * | 2010-12-31 | 2012-07-11 | 海洋王照明科技股份有限公司 | Lifting rod connecting structure and lifting rod |
| CN202002043U (en) * | 2011-01-31 | 2011-10-05 | 深圳市维思普贸易有限公司 | Anti-rotation telescopic straight tube and lamp using straight tube |
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